[LyX/master] Fix double-click expansion of outliner

[Juergen Spitzmueller]

commit 610e2f501bc174e9425b4113391b83e44316b982
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sun Sep 17 16:45:19 2023 +0200

    Fix double-click expansion of outliner
---
 src/frontends/qt/TocWidget.cpp |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/src/frontends/qt/TocWidget.cpp b/src/frontends/qt/TocWidget.cpp
index 03d870a..e3d857b 100644
--- a/src/frontends/qt/TocWidget.cpp
+++ b/src/frontends/qt/TocWidget.cpp
@@ -501,7 +501,6 @@ void TocWidget::updateView()
 		finishUpdateView();
 		timer_->start(300);
 	}
-	keep_expanded_ = false;
 }